On Thu, 2006-03-02 at 14:00 -0500, Jean-Sebastien Morisset wrote:

> Can we use an AND in the monitor line? Something like:
> 
> monitor -r 70 -o dskPath -o dskErrorMsg "dskTable" dskErrorFlag != 0 && 
> dskUsed >= 0

Not directly.
The Event MIB is designed to monitor a single value - not
arbitrary combinations.


But I've got some good news and some bad news.
The good news is that the DisMan working group also
developed an Expression MIB - explicitly for this
sort of requirement.   So the Expression MIB can be
configured to combine dskErrorFlag and dskUsed, and
the Event MIB configured to monitor the Expression MIB
(rather than the diskTable directly).

The bad news is that the Net-SNMP doesn't currently
implement the Expression MIB.  There is some preliminary
work on a full implementation (as well as an earlier
incomplete version), but the code shipped with 5.3.0.1
isn't really useable.

The good news is that the CVS branch includes newer
code that is somewhat more complete, and *may* handle
the example above.

The bad news is that this is still incomplete, and
definitely not fully tested.   But it's something you
might like to investigate.

Alternatively, you might prefer to try and track down
what's going wrong with the diskTable itself.

Dave


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